Re: [PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

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To: Hoan Tran OS <hoan@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA
From: Michal Hocko <mhocko@xxxxxxxxxx>
Date: Fri, 12 Jul 2019 14:12:23 +0200
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will.deacon@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Oscar Salvador <osalvador@xxxxxxx>, Pavel Tatashin <pavel.tatashin@xxxxxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxx>, Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, "H . Peter Anvin" <hpa@xxxxxxxxx>, "David S . Miller" <davem@xxxxxxxxxxxxx>, Heiko Carstens <heiko.carstens@xxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxx>, "open list:MEMORY MANAGEMENT" <linux-mm@xxxxxxxxx>, "linux-arm-kernel@xxxxxxxxxxxxxxxxxxx" <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, "linux-s390@xxxxxxxxxxxxxxx" <linux-s390@xxxxxxxxxxxxxxx>, "sparclinux@xxxxxxxxxxxxxxx" <sparclinux@xxxxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "linuxppc-dev@xxxxxxxxxxxxxxxx" <linuxppc-dev@xxxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Open Source Submission <patches@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <586ae736-a429-cf94-1520-1a94ffadad88@os.amperecomputing.com>
References: <1562887528-5896-1-git-send-email-Hoan@os.amperecomputing.com> <20190712070247.GM29483@dhcp22.suse.cz> <586ae736-a429-cf94-1520-1a94ffadad88@os.amperecomputing.com>
User-agent: Mutt/1.10.1 (2018-07-13)

On Fri 12-07-19 10:56:47, Hoan Tran OS wrote:
[...]
> It would be good if we can enable it by-default. Otherwise, let arch 
> enables it by them-self. Do you have any suggestions?

I can hardly make any suggestions when it is not really clear _why_ you
want to remove this config option in the first place. Please explain
what motivated you to make this change.
-- 
Michal Hocko
SUSE Labs

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